As a partial answer, let me point you to the three places of which I happen to know that they had more than one detailed report on the subject, starting the count with the arrest of Ulbricht. Please note that this list is probably a better reflection of my personal browsing habits than than any objective standard about being particularly fast or complete sources. All of these are deep links to local search results for "silk road":
- Tech Dirt
- Ars Technica
Even better might be a news aggregator, such as Slashdot (again a deep link to search results for "silk road"). You won't find too much original content beyond a summary and one or more links, but it is fairly likely that major developments reported anywhere will find their way onto Slashdot.